ISL6146AFUZ

Overview

The ISL6146AFUZ is a low voltage OR-ing FET controller manufactured by Renesas Electronics Corporation. It operates within a supply voltage range of 3V to 20V and features a typical operating supply current of 25 µA. The device supports N+1 ORing configurations with an N:1 input-to-output ratio, utilizing external N-channel MOSFETs. It is housed in an 8-MSOP package (3.00mm wide) and functions across a temperature range of -40°C to +125°C. Key electrical characteristics include a turn-off delay time of 65 ns.

Feature Summary

• Provides N+1 ORing control functionality for power distribution systems
• Integrates a fully integrated charge pump for driving external N-channel MOSFETs
• Features programmable undervoltage lockout and adjustable OUT-V trip points via external resistors
• Includes an open-drain FAULT pin to indicate conditional or FET faults

Applications

• N+1 power redundancy systems
• Telecommunications and data communication equipment
• Uninterruptible power supplies (UPS)
• Low voltage processor and memory storage systems

Procurement Notes

Verify component authenticity through authorized channels as the part status is End-of-Life. Confirm package integrity and moisture sensitivity level handling procedures prior to assembly. Cross-reference datasheet revisions to ensure compatibility with existing design specifications and regulatory requirements.

Selection Notes

Select this controller for applications requiring low voltage operation down to 3V with high efficiency. Consider the 8-MSOP package constraints and thermal performance. Ensure external MOSFET selection aligns with the controller's drive capabilities and system current requirements.

Part Context

Part of the ISL6146 family of OR-ing MOSFET controllers designed to replace diodes for improved efficiency. The family includes variants optimized for different voltage ranges and packages, supporting industrial and telecom power distribution architectures.

Replacement Considerations

Direct substitutes include ISL6146DFRZ and ISL6146BFRZ-TK. Verify pinout compatibility and electrical parameter alignment before integration.